Car truck



Nov. 22, 1927. 1,650,173

- N. B. AKITT cm TRUCK Filed Dec. 16. 1925 2 Sheets-Sheet l Nov. 22,1927.

N. B. AKITT CAR TRUCK Filed Dec. 16. 1925 2 Sheets-Sheet 2 Patented Nov.22, 1927.

UNITED ST NORMAN IBEATTY AKI'IT, OF WILMINGTON, NORTH CAROLINA, ASSIGNORTO THE BUCKEYE STEEL CASTINGS COMPANY, OF COLUMBUS, OHIO.

GAE TRUCK.

Application filed December 16, 1925. Serial No. 75,863.

This invention relates to car trucks and has for its object theprovision of a novel construction whereby wheel changes may be made,when necessary, without completely disassembling the truck. Theinvention also has for an object the provision of a novel bolster,spring plank, and brake hanger bracket. The invention is illustrated inthe accompanying drawings and will be hereinafter fully described, thenovel features being pointed out in the appended claims.

In the drawings, Figure 1 is a plan view of a portion of a car truck,illustrating the invention;

Figure 2 is a side elevation;

Figure 3 is a view showing the side frame in section and the bolster andspring plank in elevation;

Figure 3 is a plan view showing the spring plank;

Figure 4 is a detail end elevation of the spring plank and the brakehanger bracket:

Figure 5 is a detail perspective showing one construction for lockingthe spring plank in the side frame.

In'the drawings. the numeral 1 designates the side frame having integraljournal boxes 2, and of any approved design providing an opening 3 toreceive the ends of the spring plank 4 and the bolster 5. The bolster isof the usual general form and is provided on its sides near its end witha vertical offset lug or shoulder 6 adapted to bear against the innerside of the side frame so that endwise movement of the bolster outwardlythrough the side frame will be prevented. Spaced inwardly from the stops6 are other stop lugs or shoulders 7 on the sides of the bolster. Thespring plank is substantially U-shaped in cross section to fit snugly inthe lower portion of the opening 3, and openings or sockets 8 may beprovided through the base of the plank to receive lugs 9 on the sideframe and thereby lock the plank and side frame together. The brakehanger brackets 10 are cast integral with the spring plank and are solocated that when the parts are assembled to form the truck, the stoplugs or shoulders 7 will bear against the sides of the brackets, asshown in Figure 1, thereby preventing lateral separation of the bolsterand s rin plank.

With the escribed construction, when the parts remainlng intact. Whenthe parts are assembled, the lugs 6 and 7 cause the lateral forcesworking through the bolster to be transmitted to the side framesimultaneously at upper and lower levels so that the forces aredistributed and the tendency of the side frame to rock is overcome to adegree not possible when the force is applied above the journal bearingsas in the usual type of truck.

Instead of locking the spring plank to the side frame by the lugs 9 andsockets 8, the arrangement shown in Figure 5 may be employed. In thisform. lugsll are formed on the sides of the opening through the sideframe and are arranged in pairs spaced apart both vertically andhorizontally. Vertically spaced lugs 12 are formed on the side flangesof the spring plank and so disposed that when the spring plank is slidinto position in the side frame. the lugs 12 will ride over therespective lugs 11 and then .drop into place between the horizontallyalined lugs to positively lock the plank to the side frame.

Having fully described my invention what I claim as new and desire tosecure by Lettors-Patent, is f- 1. In a car truck, a side frame havingan opening therethrough. spaced lugs on the sides of the opening throughthe side frame arranged in vertical and horizontal alinement, a springplank having its end 'inserted in the opening in the side frame, andvertically spaced and aligned lugs on the spring plank to pass betweenthe vertically alined lugs on the side frame and engage between thehorizontally alined lugs.

2. In a car truck, a side frame having an opening therethrough. spacedlugs on the sides of the opening through the side frame arranged invertical and horizontal alinement, a spring plank having its endinserted in the opening in the side frame, vertically spaced and alinedlugs on the spring plank to pass between the vertically alined lugs onthe side frame and engage between the horizontally alined lugs, andbrake hanger brackets carried by the spring plank.

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3. In a. car truck, a side frame having an opening therethrough, aspring plank locked in said opening, brake'hanger brackets carried bythe spring plank, and a bolster inserted in the opening through the sideframe above the spring plank and provided on its sideswith stopsengaging the inner side of the side frame and the inner side of thebrake hanger bracket respectively.

4. In a car truck, a side frame, a spring plank having its end fitted inthe side frame, a bolster fitted in the side frame above the springplank, and means for limiting relatively outward movement of the bolsterand the spring plank while permitting vertical movement whereby thespring plank and bolster may be raised and the side frame then,withdrawn.

5. In a car truck, a side frame, a spring plank having its end fitted inthe side frame, rake hanger-brackets carried by the spring plank, abolster fitted in the side frame above the spring plank, and means forlimiting relatively outward movement of the bolster and the spring plankwhile permitting vertical movement whereby the spring plank and bolstermay be raised and the side fra'me then withdrawn.

6. In a car truck, a side frame having an opening therethrough, a springplank locked in said opening, brake hanger brack-.

ets carried by the spring plank, and a bolster inserted in the openingthrough the side frame above the spring plank and provided on its sideswith stops engaging the inner side of the side frame and the inner sideof the brake hanger bracket respectively, said stops being disposed atdifferent elevations.

7 In a car truck. a side frame with journal boxes, a spring plank lockedthereto, brake hanger brackets carried by the spring plank, bolstersprings resting in the spring v lank, a bolster passing through theopening 1n the side frame, said opening permitting vertical movement ofspring plank and bolster for the purpose of unlocking the spring plankand permitting the removal of the side I frame as one piece.

8. In a car truck, a side frame with journal boxes, a spring planklocked thereto, brake hanger brackets carried by the spring plank,bolster springs resting in the spring plank, a bolster passing throughthe opening in the side frame, said opening permitting vertical movementof spring plank and bolster for the purpose of unlocking the springplank and permitting the removal of the side frame as one piece, withoutdisturbance of brake gear. 7

9. In a car truck, a side frame with journal boxes attached having anopening therethrough, a spring plank having its end disposed insaidopening and resting 'on the frame, interengaging means on the springplahk and the side frame to lock the side frame to the spring plank,brake hanger brackets carried by the spring plank, stops on the bolsterengaging the inner side of the side frame and the inner side of thebrake hanger bracket respectively and means for disengaging the lockingdevices when the system comprising the frame, spring plank,

springs, and bolster have been raised to permit the withdrawal of theside frames, all without disturbance of the brake gear.

. 10. In a car truck, a side frame having integral journal boxes andhaving a central opening, a spring plank inserted in the opening andgravity-locked with the side frame and carrying brake hangers andsprings. and a bolster resting on the springs and extending through theopening, said bolster having stops on its sides limiting relative inwardmovement of the side frame, but permitting withdrawal of the side framewithout disturbing the normal relation between spring plank, brakerigging, springs and bolster.

11. In a car truck, a side frame having integral journal boxes andhaving a central opening, a spring plank inserted in the opening andgravity-locked with the side frame and carrying brake hangers andsprings, and a bolster resting on the springs and extending through theopening, the bolster having stops on its sides at the inner side of theside frame wherebythe spring plank and superposed parts may be raisedvertically, without disturbing the relation of the bolster, brakerigging, springs and spring plank,

to release the spring plank from the side frame and permit disengagementof the journal box parts and subsequent lateral withdrawal of the sideframe.

12. In a car truck, a side frame, a spring plank carrying brake hangerbrackets and interlocking with the side frame. a bolster fitted in theside frame above the spring plank. stops on the sides of the bolsterabutting the inner sides of the side frames. and other stops on thesides of the bolster abutting the inner sides of the brake hangerbrackets to limit outward movement of the bolster relative to the sideframe but permit vertical movement of the spring plank and bolster andsubsequent lateral withdrawal of the side frame.

13. In a car truck, a side frame, a spring plank carrying brake hangerbrackets and interlocking with the side frame, a bolster fitted in theside frame above the spring plank, and stops on the sides of the bolsterabutting the inner sides of the brake hanger brackets to limit therelative outward movement of the bolster and permit vertical move mentof the spring plank and bolster and lateral withdrawal of the sideframe.

14. In a car truck, a side frame, a spring plank having its end fittedin the side frame, a bolster fitted in the side frame above the springplank, and stops on the sides of the bolster abutting the inner side ofthe side frame whereby to limit the relative outward movement of thebolster and permitting withdrawal of the side frame after the spring 5plank and bolster are raised.

15. A method of assembling a side frame With the spring plank, springsand bolster of a car truck, which consists in supporting the springplank, springsand bolster in a position -above normal, moving the" sideframe bodily sidewise to and about the ends of the bolster and thespring plank; and then lowering the spring plank into interlockingengagement with the bottom member of the side frame.

16. A method of disassembling a side frame from other members of a cartruck which consists in raising the spring plank out of engagement withthe side frame while retainingfthe springs and bolster in positionsupported by the spring plank, and then moving the side frame bodilyoutward.

In testimony whereof, I havesigned this specification.

NORMAN BEATTY AKITT.

